Operating rig for clutches and the like



Aug. 11, 1925,

1,549,259 E. s. JOHNSON OPERATING RIG FOR CLUTCHES AND THE LIKE Filed Jan. 27 1923 2 Shasta-Sheet 1 -31 21 2e I 25 I i Aug. 11, 1925. 1,549,259

E. S. JOHNSON OPERATING RIG FOR CLUTCHES AND THE LIKE Filed Jan. 27, 1923 2 Shun-Shut 2 J gmzw Patented Aug. 11, 1925.

NITED STATES isiazse EDWARD SPENCER JOHNSON, OF DAVENPORT, IOWA.

OPERATING BIG FOR CLUTCHES AND THE LIKE.

Application filed January 27, 1925. Serial No. 615,294.

To a? Z whom it may concern Be it known that I, EDWARD SPENCER JoHNsoN, a citizen of the United States, and resident of Davenport, in the county of Scott and State of Iowa, have invented a certain new and useful Improvement in an Operating Rig for Clutches and the like, of which the following is a full, clear, and exact description.

My present invention relates to means actuated by air or steam pressure from the cab of the locomotive for operating a clutch or the like, and has more particular reference to the mechanism used in connection which the following is a full, clear, and exact description.

One of the objects of my invention is to provide an auxiliary operating rig that is controlled by the engineer in the cab of a locomotive by means of a multiple control valve whereby the movable element of the clutch connected with the gear-train may be moved or shifted in either direction to throw the same into operative or inoperative positions. Another object resides in providing a structure that is simple and dependable in operation and which comprises a minimum of parts so as to reduce the liability of its getting out of order. A further object resides in providing an auxilia-ry operating rig that is compact in construction so that it can be readily installed below the body of a locomotive tender, or may be mounted on the underfra'me or upon the truck of such structures. Having the foregoing objects in view, my invention comprises the structure hereinafter described, and more particularly pointed out in the claims. 7

The drawings are, in a sense, merely diagrammat-ic for the purpose of illustration, and in said drawings F ig. 1 is a vertical longitudinal elevation of my operating rig showing the relative location of the parts thereof. 1

Fig. 2 is a transverse vertical section on line 2-2, Fig. 1.

Fig. 3 is a top plan of my invention.

Fig. 4c is a longitudinal vertical section on line 44;, Fig. 3.

Fig. 5 is a perspective of the operating cam-plate.

The drawings illustrate a typical or preferred embodiment of my invention, which, as seen, consists of a horizontally disposed cylinder 10 to which air or other suitable fluid under pressure is admitted to its opposite ends through feed pipes 11 and 12 that receive the fluid from a suitable source of supply through a three-way valve 13 located in the cab of the locomotive and which valve is controlled by the operator through a hand lever 14.

Reciprocating longitudinally through one end of the cylinder 10 is a piston-rod 15 that is disposed with its axis horizontal and to the inner end of which is secured a suitable piston-head 16 that operates within the cylinder. The outer end of piston-rod 15 has a socketed yoke 17 screwed or pinned thereon, that has its bifurcated end hingedly connected by means of the pivot pin 18 with a slidable cam-plate 19 that operates simultaneously with the piston-rod with which it is in axial alinement. As seen in Figure 5 of the drawings, this camplate is a flat piece of metal of substantially rectangular outline disposed in a horizontal plane in a suitable guide as will hereinafter appear, and its longitudinal edges are provided with oppositely projecting tenons 20 that co-operate with the guiding device. Formed transversely through the plate 19 is a cam-slot 21 that extends diagonally across the plate and has straightened end portions 22 that are disposed longitudinally of the plate parallel with its adjacent edges so that the slot is of a distorted Z-sha-pe.

Mounted upon a convenient portion of the vehicle, say the side-frames of the truck, is a suitable support 23 to which is secured an elongated guide frame 24 that is of hollow construction and is open at its top to receive the cam-plate 19. It will be seen (Figure 2) the guide-frame 24c is of substantially U-shape in cross section and is provided with reinforcing webs 25 extending from side-wall to side-wall but of less height than said walls. In the upper portions of the vertical side-walls of the guideframe are grooves 26 to receive the tenons 20 of the cam-plate 19 and guide the latter in its reciprocal movements when actuated by the piston. Supported upon a bridgepiece 27 at the end of the side-walls opposite the piston, is a pair of horizontally disposed links 28 that provide one end of a toggle, the purpose of which will later appear. The adjacent ends of these links 28 are pivotally connected to the bric gepiece 27 by a vertically disposed pivot-pin 29 that passes through the bridge so that the adjacent ends of the links will be disposed upon the upper and under surfaces of the bridge-piece and the opposite portions of said links will extend upon the corresponding sides of the cam-plate 19. The outer ends of links 28 are'connected by a transverse bolt 30 that passes transversely through the cam-slot 21 in said camplate and has a roller 31 journaled thereon between the links so that it rides against the edges of the slot to cause an oscillation of the links during the reciprocation of the canrplate 19. i

A vertically disposed rock-shaft 32 is con veniently mounted with respect to the structure just described and to one end of said shaft is rigidly secured a lever-arm 33 which at its outer end is connected to link 34 forming the other portion of the toggle before mentioned; This operatively connects the leverarm 33 to the bolt 30, on which the roller 31 is mounted, and completes the toggle. By this arrangement, when the piston is reciprocated, roller 31 is caused to follow the diagonal portion of the slot 21 in the cam-plate thereby actuating the toggle by moving the links 28 in an arcuate direction and causing the link 3*]: to rock the shaft 32 by means of the lever-arm 33 to which it is pivotally connected. The direction of movement of the cam-plate is readily controlled by theoperator in the cab by shifting the position of the hand-lever on valve 13 whereby he may admit the pressure-fluid to either end of the cylinder 10 through the respective pipes 11 and 12 which discharge the fluid either in front of or back of the piston-head 16.

At the lower end of the rock-shaft 39 is mounted a clutch-operating yoke which comprises a lateral arm 35 disposed in a horizontal plane, and having a roller 3 journaled vertically thereon at its outer end; A bracket 37 of Y-shape extends vertically downwardly from the arm 35 and has an irregularly-shaped arm 38 removably secured to its lower end by means of a castilated nut 39 to permit its being locked in place. This lower arm 38 terminates in approximately the vertical plane of the end of its companion arm 35 with which it is parallel and it likewise has a roller 40 journaled vertically thereon that faces the roller 36 on the other arm. These rollers 36 and a0 engage opposite portions of a groove 41 in the movable member of the clutch, which element is slidable longitudinally upon the squared portion of a shaft 42.

It will be understood that the rocking of shaft 32 will cause an oscillation of the arms 35 and 38 of the yoke thereby shifting the movable element of the clutch so as to throw the same into or out of operative position.

What I claim is 1. An operating rig for clutches and the like comprising a reclprocable plate having a cam slo-t therein, means for guiding said plate, a rock-shaft adjacent said plate, a

lever-arm extending from said shaft, a link pivoted at one end on said guiding means, a second link pivotally connecting said first link and said lever-arm, a roller connected to one of said links and operable in said camslot, and an oscillatory yoke carried by said shaft.

2. An operating rig for clutches and the like comprising a reciprocable plate having a cam-slot therein, means for guiding said plate, a rockshaft adjacent said plate, a lever-arm extending from said shaft, a roller operable in said cam slot, links extending from said roller respectively to said guiding means and saidlever-arm, and an oscillatory yoke carried by said shaft.

3. An operating rig for clutches and the like comprising a forked yoke, a rock-shaft upon which said yoke is mounted, a lateral member on said rock-shaft, a toggle one end of which has a fixed pivot and the opposite end is connected to said lateral member, and a cam device operating upon the elbow of said toggle whereby to rock said shaft and oscillate said yoke. l

4. An operating rig for clutches and the like comprising a cam slotted plate, means for actuating the same, a rock-shaft, means including a hinged toggle for operatively connecting said cam and shaft, the elbow of said toggle engaging said cam slot and an oscillatory clutch yoke actuated by said shaft.

5. An operating rig for clutches and the like comprising a yoke, a rock-shaft upon which said yoke is mounted, an arm fixed on said shaft and extending therefrom, a toggle one end of which has afixed pivot and the opposite end is connected to said arm, and a movable plate provided-with a cam. slot engaged withthe, elbow of said toggle whereby to rock said shaft and oscillate said yoke. i

6. An operating rig for clutches and the like comprising a yoke, a rock-shaft upon which said yoke is mounted, a lateral member on said shaft, a toggle consisting of links having adjacent ends pivotally connected to each other, the outer end of one of said links having a fixed pivot and the outer end of the other link being connected to said lateral member, and a cam device operatingupon the pivot connecting said links whereby to rock said shaft and oscillate said yoke.

Signed at Davenport, Scott County, Iowa, this 20th day of January, A. D., 1923.

EDWARD srnncnn JOHNSON.

Witnesses A. SEBELIEN, V. CHADWICK. 

